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Latest and Most Accurate Oracle 1z0-071 Dumps Exam Questions and Answers:
The following are the steps for a correlated subquery, listed in random order:
1) The WHERE clause of the outer query is evaluated.
2) The candidate row is fetched from the table specified in the outer query.
3) The procedure is repeated for the subsequent rows of the table, till all the rows are processed.
4) Rows are returned by the inner query, after being evaluated with the value from the candidate row in the outer query. Identify the option that contains the steps in the correct sequence in which the Oracle server evaluates a correlated subquery.
Evaluate the following SQL query;
What would be the outcome?
ROUND(column|expression, n) Rounds the column, expression, or value to n decimal places or, if n is omitted, no decimal places (If n is negative, numbers to the left of the decimal point are rounded.)
TRUNC(column|expression, n) Truncates the column, expression, or value to n decimal places or, if n is omitted, n defaults to zero
Which statement is true regarding external tables?
A. The default REJECT LIMIT for external tables is UNLIMITED.
B. The data and metadata for an external table are stored outside the database.
C. ORACLE_LOADER and ORACLE_DATAPUMP have exactly the same functionality when used with an external table.
D. The CREATE TABLE AS SELECT statement can be used to unload data into a regular table in the database from an external table.
Which two statements are true about Data Manipulation Language (DML) statements?
A. AH INSERT INTO…VALUES. the statement can add multiple rows per execution to a table.
B. An UPDATE…SET… statement can modify multiple rows based on multiple conditions on a table.
C. A DELETE FROM ….. statement can remove rows based on only a single condition on a table.
D. An INSERT INTO…VALUES….. statement can add a single row based on multiple conditions on a table.
E. A DELETE FROM….. statement can remove multiple rows based on multiple conditions on a table.
F. An UPDATE…SET…. statement can modify multiple rows based on only a single condition on a table.
Which two statements are true regarding roles? (Choose two.)
A. A role can be granted to itself.
B. A role can be granted to PUBLIC.
C. A user can be granted only one role at any point of time.
D. The REVOKE command can be used to remove privileges but not roles from other users.
E. Roles are named groups of related privileges that can be granted to users or other roles.
Which two statements are true regarding constraints? (Choose two.)
A. A foreign key cannot contain NULL values.
B. A column with the UNIQUE constraint can contain NULL.
C. A constraint is enforced only for the INSERT operation on a table.
D. A constraint can be disabled even if the constraint column contains data.
E. All the constraints can be defined at the column level as well as the table level
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